231020324 has 12 divisors (see below), whose sum is σ = 406339164. Its totient is φ = 114923424.

The previous prime is 231020311. The next prime is 231020329. The reversal of 231020324 is 423020132.

It can be written as a sum of positive squares in 2 ways, for example, as 124724224 + 106296100 = 11168^2 + 10310^2 .

It is not an unprimeable number, because it can be changed into a prime (231020329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145799 + ... + 147374.

It is an arithmetic number, because the mean of its divisors is an integer number (33861597).

Almost surely, 2^231020324 is an apocalyptic number.

It is an amenable number.

231020324 is a deficient number, since it is larger than the sum of its proper divisors (175318840).

231020324 is a wasteful number, since it uses less digits than its factorization.

231020324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293374 (or 293372 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 231020324 is about 15199.3527493772. The cubic root of 231020324 is about 613.5972382214.

Adding to 231020324 its reverse (423020132), we get a palindrome (654040456).

The spelling of 231020324 in words is "two hundred thirty-one million, twenty thousand, three hundred twenty-four".